Metamaterial electro-optic switch of nanoscale thickness
Sámson, Z.L., MacDonald, K.F., De Angelis, F., Gholipour, B., Knight, K., Huang, C.C., Di Fabrizio, E., Hewak, D.W. and Zheludev, N.I. (2010) Metamaterial electro-optic switch of nanoscale thickness. Applied Physics Letters, 96, 143105. (doi:10.1063/1.3355544).
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Description/Abstract
We demonstrate an innovative concept for nanoscale electro-optic switching. It exploits the frequency shift of a narrow-band Fano resonance mode in a plasmonic planar metamaterial induced by a change in the dielectric properties of an adjacent chalcogenide glass layer. An electrically stimulated transition between amorphous and crystalline forms of the glass brings about a 150 nm shift in the near-infrared resonance providing transmission modulation with a contrast ratio of 4:1 in a device of subwavelength thickness.
| Item Type: | Article |
|---|---|
| ISSNs: | 0003-6951 (print) 1077-3118 (electronic) |
| Related URLs: | |
| Keywords: | chalcogenide glasses, dielectric properties, electron spin polarisation, electro-optical switches, metamaterials, photoemission |
| Subjects: | Q Science > QC Physics |
| Divisions: | University Structure - Pre August 2011 > Optoelectronics Research Centre |
| Item ID: | 148949 |
| Date Deposited: | 29 Apr 2010 11:24 |
| Last Modified: | 08 Jun 2012 12:39 |
| Contributors: | Sámson, Z.L. (Author) MacDonald, K.F. (Author) De Angelis, F. (Author) Gholipour, B. (Author) Knight, K. (Author) Huang, C.C. (Author) Di Fabrizio, E. (Author) Hewak, D.W. (Author) Zheludev, N.I. (Author) |
| Date: | 5 April 2010 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/148949 |
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